#!/usr/bin/env node
/**
* Generate a macOS ICNS file from the McpMux branding SVG.
* ICNS format with PNG payloads for modern macOS.
*/
import sharp from 'sharp';
import { readFileSync, writeFileSync } from 'fs';
import { join } from 'path';
const ICONS_DIR = join(import.meta.dirname, '..', 'apps', 'desktop', 'src-tauri', 'icons');
const SVG_FULL = join(import.meta.dirname, '..', '..', 'mcpmux.space', 'branding', 'icons', 'appicon-512.svg');
const SVG_SMALL = join(ICONS_DIR, 'appicon-small.svg');
const svgFullBuffer = readFileSync(SVG_FULL);
const svgSmallBuffer = readFileSync(SVG_SMALL);
const SMALL_THRESHOLD = 64;
function svgFor(size) {
return size <= SMALL_THRESHOLD ? svgSmallBuffer : svgFullBuffer;
}
// ICNS icon types that accept PNG data
const ICNS_TYPES = [
{ type: 'ic07', size: 128 }, // 128x128
{ type: 'ic08', size: 256 }, // 256x256
{ type: 'ic09', size: 512 }, // 512x512
{ type: 'ic10', size: 1024 }, // 1024x1024 (512@2x)
{ type: 'ic11', size: 32 }, // 16x16@2x
{ type: 'ic12', size: 64 }, // 32x32@2x
{ type: 'ic13', size: 256 }, // 128x128@2x
{ type: 'ic14', size: 512 }, // 256x256@2x
];
async function main() {
console.log('Generating icon.icns...');
const entries = [];
for (const { type, size } of ICNS_TYPES) {
const svg = svgFor(size);
const png = await sharp(svg, { density: Math.round(72 * size / 512 * 4) })
.resize(size, size)
.png()
.toBuffer();
entries.push({ type, data: png });
}
// Calculate total size
let totalSize = 8; // ICNS header
for (const { data } of entries) {
totalSize += 8 + data.length; // type(4) + length(4) + data
}
const icns = Buffer.alloc(totalSize);
let offset = 0;
// ICNS magic header
icns.write('icns', offset, 'ascii'); offset += 4;
icns.writeUInt32BE(totalSize, offset); offset += 4;
// Write each entry
for (const { type, data } of entries) {
icns.write(type, offset, 'ascii'); offset += 4;
icns.writeUInt32BE(8 + data.length, offset); offset += 4;
data.copy(icns, offset); offset += data.length;
}
const outPath = join(ICONS_DIR, 'icon.icns');
writeFileSync(outPath, icns);
console.log(` ✓ icon.icns (${totalSize} bytes, ${entries.length} sizes)`);
}
main().catch(console.error);
